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math.AP2026

A hyperbolic model for two-layer thin film flow with a perfectly soluble anti-surfactant

Rahul Barthwal, Christian Rohde

We consider the motion of a two-layer thin film that consists of two immiscible viscous fluids and is endowed with an anti-surfactant solute. The presence of such solute particles…

math.AP2026

Convergence of a two-parameter hyperbolic relaxation system toward the incompressible Navier-Stokes equations

Qian Huang, Christian Rohde, Ruixi Zhang

We investigate a two-parameter hyperbolic relaxation approximation to the incompressible Navier-Stokes equations, incorporating a first-order relaxation and the artificial compress…

math.AP2025

Statistical conservation laws for scalar model problems: Hierarchical evolution equations

Qian Huang, Christian Rohde

The probability density functions (PDFs) for the solution of the incompressible Navier-Stokes equation can be represented by a hierarchy of linear equations. This article develops…

math.AP2024

A Note on Hyperbolic Relaxation of the Navier-Stokes-Cahn-Hilliard system for incompressible two-phase flow

Jens Keim, Hasel-Cicek Konan, Christian Rohde

We consider the two-phase dynamics of two incompressible and immiscible fluids. As a mathematical model we rely on the Navier-Stokes-Cahn-Hilliard system that belongs to the class…

math.AP2024

A hyperbolic relaxation system of the incompressible Navier-Stokes equations with artificial compressibility

Qian Huang, Christian Rohde, Wen-An Yong +1

We introduce a new hyperbolic approximation to the incompressible Navier-Stokes equations by incorporating a first-order relaxation and using the artificial compressibility method.…